Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

A relic of FDR's brief foray into utopian urban planning.

The world's oldest continuously operating airport was founded by the Wright Brothers.

A mammoth pair of Civil War artillery guns abandoned out in the forest.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

A priceless collection of the Nation's cryptologic history.

An astounding collection of medical specimens, including bits of President Lincoln.

These unusual rooms on wheels are holdovers from the 1960s.

Extraordinary objects lurk in this quintessential regional museum.

The romance of early commercial flight still fills this Art Deco destination.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

A former major munitions plant that has been converted into a sprawling art space.

An innovative attempt to break a siege in the American Civil War still scars the earth today.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.